CN111761779A - Insert thickness tolerance compensation mechanism of insert injection mold - Google Patents
Insert thickness tolerance compensation mechanism of insert injection mold Download PDFInfo
- Publication number
- CN111761779A CN111761779A CN202010564763.4A CN202010564763A CN111761779A CN 111761779 A CN111761779 A CN 111761779A CN 202010564763 A CN202010564763 A CN 202010564763A CN 111761779 A CN111761779 A CN 111761779A
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- China
- Prior art keywords
- insert
- slide block
- die
- injection mold
- compensation mechanism
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000002347 injection Methods 0.000 title claims abstract description 23
- 239000007924 injection Substances 0.000 title claims abstract description 23
- 229920003023 plastic Polymers 0.000 abstract description 6
- 239000004033 plastic Substances 0.000 abstract description 6
- 230000000694 effects Effects 0.000 description 14
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 5
- 238000001746 injection moulding Methods 0.000 description 4
- 241000561734 Celosia cristata Species 0.000 description 2
- 210000001520 comb Anatomy 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/14065—Positioning or centering articles in the mould
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/14065—Positioning or centering articles in the mould
- B29C2045/14139—Positioning or centering articles in the mould positioning inserts having a part extending into a positioning cavity outside the mould cavity
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses an insert thickness tolerance compensation mechanism of an insert injection mold, which comprises a male mold, a movable insert and a driving device, wherein at least one insert slideway extending along the mold closing direction is arranged in the male mold, the insert is just opposite to an opening of the insert slideway facing to a female mold, the movable insert can be slidably arranged in each insert slideway, the upper end of the movable insert can be tightly attached to the surface of one side of the insert, which is back to the female mold, and the driving device drives the movable insert to slide. The plastic flash and the burr are avoided, and the size precision of the product is ensured.
Description
Technical Field
The invention relates to an injection mold device, in particular to an insert thickness tolerance compensation mechanism of an insert injection mold.
Background
At present, a plurality of products are formed by encapsulating a certain part of the surface of a metal insert through an injection mold, and for the products with larger sizes and only encapsulating a certain part of the product, when the injection molding and encapsulating are carried out, one part of the insert is exposed outside the injection mold, and when the injection molding and encapsulating are carried out on an iron insert with the thickness range of 1.5-5.0 mm and the tolerance range of +/-0.15, because the difference exists among insert batches, the iron piece with the tolerance is put into the mold to support the injection mold, so that the injection mold can not be closed in place, and the plastic material overflow is caused; the iron part of tolerance is put into the mould down, can produce the gap with the mould and produce, and the back product surface of moulding plastics has deckle edge to take place, and just above-mentioned two kinds of circumstances can all influence the size of product.
Disclosure of Invention
In order to overcome the defects, the invention provides the insert thickness tolerance compensation mechanism of the insert injection mold, which can automatically compensate the tolerance of an insert, so that the insert and a female mold are kept in a close fit state, plastic flash and product burrs are avoided, and the size precision of the product can be effectively ensured.
The technical scheme adopted by the invention for solving the technical problem is as follows: the utility model provides an inserts thickness tolerance compensation mechanism of inserts injection mold, includes public mould, activity income son and drive arrangement, be equipped with at least one income son slide that extends along the compound die direction in the public mould, and the inserts just faces with the opening of this income son slide towards the master model direction just, and the activity is gone into son and can be slidable and install in each income son slide, and the activity goes into son upper end and can closely laminate with inserts dorsad master model side surface, and drive arrangement drive activity income son slides.
As a further improvement of the invention, the driving device comprises an oil cylinder, a first slide block and a second slide block, the first slide block can be arranged in the male die in a reciprocating sliding manner within a certain range along a vertical die assembly direction, the second slide block can be arranged in the male die in a reciprocating sliding manner along the die assembly direction, one side wall of the first slide block is in close contact with one side wall of the second slide block through an inclined surface, the other side wall of the second slide block tightly abuts against one end, away from the female die, of the movable insert, the oil cylinder is fixedly arranged on the outer side wall of the male die, an oil cylinder connecting rod is arranged on a piston of the oil cylinder, the oil cylinder connecting rod can be inserted in the male die in a sliding manner along the vertical die assembly direction.
As a further improvement of the invention, a slide block mounting groove is formed in the male die, the insert slideway is communicated with the slide block mounting groove, the second slide block can only be inserted into the slide block mounting groove in a die assembly direction in a sliding manner, the first slide block can be inserted into the slide block mounting groove in a sliding manner in a direction perpendicular to a die opening direction, one side of the first slide block, which is opposite to the oil cylinder connecting rod, is stopped on the inner side surface of the slide block mounting groove, the mutually contacted surfaces of the first slide block and the second slide block respectively form mutually matched saw-toothed multi-section inclined surfaces, a step surface formed between the multi-section inclined surfaces on the second slide block is stopped on a step surface formed between the multi-section inclined surfaces on the first slide block, and the step surface on the.
As a further improvement of the invention, the oil cylinder connecting rod is also provided with a radial inner groove structure, a limiting lug is fixedly arranged in a slide block slot of the male die, and the limiting lug can be inserted in the radial inner groove structure in an axially sliding manner along the oil cylinder connecting rod.
As a further improvement of the invention, a slide rail is further arranged on the bottom surface of the slide block slot of the male die, and one end of the first slide block, which is back to the second slide block, is arranged on the slide rail in a sliding manner.
As a further improvement of the invention, the movable insert is of an L-shaped structure, the insert slideway on the male die is of an L-shaped structure, the diameter of the insert slideway facing one end of the female die is smaller than that of the other end of the female die, and a side wall of the movable insert, which extends along the direction vertical to the die assembly, is stopped on a step surface formed between two ends of the insert slideway.
As a further improvement of the invention, the die assembly machine is further provided with a limiting connecting piece, a countersunk through hole with the diameter smaller than that of the other end of the female die is arranged on one side wall of the movable insert extending along the direction vertical to the die assembly direction, the connecting piece can be inserted into the countersunk through hole in a sliding manner, one end of the connecting piece is fixedly connected with the male die, the other end of the connecting piece forms a radial outward expansion structure, and the radial outward expansion structure is accommodated in the countersunk head of the countersunk through hole and is stopped on the countersunk bottom surface of the countersunk through hole.
As a further improvement of the invention, a restoring elastic element is also provided, which provides the movable insert with an elastic retaining force in the direction away from the female die.
As a further improvement of the invention, the movable insert, the first slide block and the second slide block are respectively provided with a thimble hole which is opposite to and communicated with each other, a thimble on the male die can be slidably inserted into the thimble hole and can tightly abut against the surface of the insert, and a set gap is formed between the thimble hole on the first slide block and the side wall of the thimble.
As a further improvement of the invention, a guide block is fixedly arranged on the inner side wall of the slide block mounting groove, and the outer side wall of the second slide block is tightly attached to the guide surface of the guide block.
The invention has the beneficial effects that: according to the invention, the insert slideway is arranged in the male die, the movable insert is arranged in the insert slideway, and after the insert is placed in the cavity of the male die, the driving device drives the movable insert to ascend to tightly push the insert, so that one side of the insert is tightly attached to the surface of the female die, and the movable insert is tightly attached to the other side of the insert.
Drawings
FIG. 1 is a front view of the structural principle of the present invention;
FIG. 2 is a sectional view taken along line A-A of FIG. 1;
fig. 3 is a sectional view taken along line B-B in fig. 1.
Detailed Description
Example (b): the utility model provides an inserts thickness tolerance compensation mechanism of inserts injection mold, includes public mould 1, activity income sub 2 and drive arrangement, be equipped with at least one income sub-slide that extends along the compound die direction in the public mould 1, and inserts 3 just right with the opening of this income sub-slide towards the master model direction, the activity is gone into sub 2 slidable and is installed in each income sub-slide, and activity income 2 upper end can closely laminate with inserts 3 one side surface of the master model dorsad, and drive arrangement drive activity is gone into sub 2 and is slided.
Insert 3 and plastic intersection in public mould 1, design slidable activity goes into son 2, drive this activity through drive arrangement and go into son 2 slip top tight inserts 3 surfaces, the activity goes into son 2 and has the activity of 3 thickness tolerance within ranges of inserts in public mould 1, when 3 tolerances of inserts change, drive arrangement can drive the activity and go into 2 top tight inserts 3 of son and compensate, when moulding plastics in the mould, the activity goes into son 2 and inserts 3 can keep good laminating state, the master model also keeps inseparable contact state with inserts 3 simultaneously. Therefore, the burr can be avoided, the glue overflow of the die can be avoided, and the stability of the size of the product is ensured.
The driving device comprises an oil cylinder 4, a first sliding block 5 and a second sliding block 6, wherein the first sliding block 5 can be installed in the male die 1 in a reciprocating sliding mode within a certain range along the vertical die assembly direction, the second sliding block 6 can be installed in the male die 1 in a reciprocating sliding mode along the die assembly direction, one side wall of the first sliding block 5 is in close contact with one side wall of the second sliding block 6 through an inclined plane, the other side wall of the second sliding block 6 tightly supports one end, away from the female die, of the movable insert 2, the oil cylinder 4 is fixedly installed on the outer side wall of the male die 1, an oil cylinder connecting rod 7 is arranged on a piston of the oil cylinder 4, the oil cylinder connecting rod 7 can be inserted into the male die 1 in a sliding mode along the vertical die assembly direction, and the end portion. When the die is closed, the piston of the oil cylinder 4 moves to drive the oil cylinder connecting rod 7 to slide in a telescopic manner, the oil cylinder connecting rod 7 drives the first slide block 5 to slide along the direction vertical to the die closing direction, the first slide block 5 is contacted with the second slide block 6 through an inclined plane, the second slide block 6 slides along the die closing direction, the second slide block 6 slides towards the female die against the movable insert 2 and further clings to the surface of the insert 3, one side surface of the insert 3 is tightly clung to the movable insert 2, the other side surface of the insert 3 is tightly clung to the female die, so that the insert 3 is kept in a tightly positioned state in the injection die, the situations of glue overflow, product burrs and the like are avoided during injection molding, and the size precision of the product after injection molding is high because the insert 3 is stably positioned, besides the structure, the oil cylinder 4 can also be arranged along the die closing direction to directly push the movable insert 2 to lift, or an inclined slide block is arranged in the, the movable insert 2 can move along the die assembly direction by obliquely pushing against the oblique slide block to slide in the male die 1 along the vertical die assembly direction and then arranging the first slide block 5 and the second slide block 6 which are in oblique contact in the male die 1, and the like are equivalent alternative structures which can be easily thought by a person skilled in the art according to the patent.
A slider mounting groove 8 is formed in the male die 1, the insert slideway is communicated with the slider mounting groove 8, the second slider 6 can only be inserted in the slider mounting groove 8 along the die assembly direction in a sliding manner, the first slider 5 can be inserted in the slider mounting groove 8 along the direction perpendicular to the die opening direction in a sliding manner, one side of the first slider 5, which is back to the oil cylinder connecting rod 7, is stopped on the inner side surface of the slider mounting groove 8, the mutually-matched serrated multi-section inclined surfaces are respectively formed on the surfaces of the first slider 5 and the second slider 6, the step surfaces formed among the multi-section inclined surfaces on the second slider 6 are stopped on the step surfaces formed among the multi-section inclined surfaces on the first slider 5, and the step surfaces on the first slider 5 face the direction of the oil cylinder connecting rod 7. This structure passes through slider mounting groove 8 and realizes the installation location of first slider 5 and second slider 6, carries on spacingly to 5 sliding range one sides of first slider simultaneously, and second slider 6 matches through cockscomb structure multistage inclined plane with first slider 5, has improved contact stability, and simultaneously, the step face between the cockscomb structure multistage inclined plane can also realize spacing 5 sliding range opposite sides of first slider, this structural design is ingenious.
The oil cylinder connecting rod 7 is further provided with a radial inner groove structure, a limiting lug 9 is further fixedly arranged in a slide block slot of the male die 1, and the limiting lug 9 can be axially slidably inserted into the radial inner groove structure along the oil cylinder connecting rod 7. The limiting convex block 9 can guide and limit the sliding of the oil cylinder connecting rod 7.
And a sliding rail 10 is further arranged on the bottom surface of the sliding block slot of the male die 1, and the first sliding block 5 is arranged on the sliding rail 10 in a manner of sliding back to one end of the second sliding block 6. The sliding rail 10 can guide the sliding of the first sliding block 5.
The movable insert 2 is of an L-shaped structure, the insert slideway on the male die 1 is of an L-shaped structure, the diameter of the insert slideway is smaller than that of the female die towards one end, and one side wall of the movable insert 2, which extends along the direction perpendicular to the die assembly direction, is stopped on a step surface formed between the two ends of the insert slideway. The movable insert 2 is designed into an L-shaped structure, so that the sliding range of the movable insert 2 can be guided, and the strength of the movable insert 2 is improved.
The die is characterized in that a limiting connecting piece 11 is further arranged, a countersunk through hole with the diameter smaller than that of the other end towards one end of the female die is formed in one side wall of the movable insert 2 extending in the direction perpendicular to the die assembling direction, the connecting piece can be inserted into the countersunk through hole in a sliding mode, one end of the connecting piece is fixedly connected with the male die 1, the other end of the connecting piece forms a radial outward expansion structure, and the radial outward expansion structure is accommodated in a countersunk head of the countersunk through hole and is stopped on the countersunk bottom surface of the countersunk through hole. The structure can accurately limit the moving range of the movable insert 2.
A restoring spring 12 is also provided, which restoring spring 12 provides the movable insert 2 with an elastic retaining force in the direction away from the female die. The reset elastic part 12 can enable the first slide block 5 and the movable insert 2 to automatically reset after losing the thrust of the oil cylinder 4, so that the influence on mold opening, insert 3 taking out and next mold closing are avoided.
The movable insert 2, the first sliding block 5 and the second sliding block 6 are respectively provided with an ejector pin hole 13 which is opposite to the communicating part, an ejector pin on the male die 1 can be inserted into the ejector pin hole 13 in a sliding way and can tightly abut against the surface of the insert 3, and a set gap exists between the ejector pin hole 13 and the side wall of the ejector pin on the first sliding block 5. The thimble can be passed through the thimble hole 13 to demould the insert 3.
And a guide block 14 is fixedly arranged on the inner side wall of the slide block mounting groove 8, and the outer side wall of the second slide block 6 is tightly attached to the guide surface of the guide block 14. The guide block 14 can guide the second slide 6 to slide in the mold clamping direction.
Claims (10)
1. The utility model provides an inserts thickness tolerance compensation mechanism of inserts injection mold which characterized in that: the movable insert is installed in each insert slideway in a sliding mode, the upper end of the movable insert can be tightly attached to the surface of one side, back to the female die, of the insert, and the driving device drives the movable insert to slide.
2. The insert thickness tolerance compensation mechanism of an insert injection mold according to claim 1, wherein: the driving device comprises an oil cylinder (4), a first sliding block (5) and a second sliding block (6), the first sliding block can be installed in the male die in a reciprocating sliding mode within a certain range along the vertical die assembly direction, the second sliding block can be installed in the male die in a reciprocating sliding mode along the die assembly direction, the first sliding block is in close contact with one side wall of the second sliding block through an inclined plane, the other side wall of the second sliding block tightly supports one end, away from the female die, of the movable insert, the oil cylinder is fixedly installed on the outer side wall of the male die, an oil cylinder connecting rod (7) is arranged on a piston of the oil cylinder, the oil cylinder connecting rod can be inserted in the male die in a sliding mode along the vertical die assembly direction, and the end.
3. The insert thickness tolerance compensation mechanism of an insert injection mold according to claim 2, wherein: a slide block mounting groove (8) is formed in the male die, the insert slide way is communicated with the slide block mounting groove, the second slide block can only be inserted into the slide block mounting groove along the die assembly direction in a sliding manner, the first slide block can be inserted into the slide block mounting groove along the vertical die opening direction in a sliding manner, one side, back to the oil cylinder connecting rod, of the first slide block is stopped on the inner side surface of the slide block mounting groove, the surfaces, in contact with each other, of the first slide block and the second slide block respectively form mutually matched saw-toothed multi-section inclined planes, step surfaces formed among the multi-section inclined planes on the second slide block are stopped on step surfaces formed among the multi-section inclined planes on the first slide block, and the step surfaces on the.
4. The insert thickness tolerance compensation mechanism of an insert injection mold according to claim 3, wherein: the oil cylinder connecting rod is further provided with a radial inner groove structure, a limiting convex block (9) is further fixedly arranged in a sliding block slot of the male die, and the limiting convex block can be axially slidably inserted into the radial inner groove structure along the oil cylinder connecting rod.
5. The insert thickness tolerance compensation mechanism of an insert injection mold according to claim 3, wherein: still be equipped with slide rail (10) on the slider slot bottom surface of public mould, first slider is the gliding of second slider one end of the back of the body locates on this slide rail.
6. The insert thickness tolerance compensation mechanism of an insert injection mold according to claim 3, wherein: the movable insert is of an L-shaped structure, the insert slideway on the male die is of an L-shaped structure, the diameter of the insert slideway is smaller than that of the other end of the insert slideway, the movable insert is in an L-shaped structure, the diameter of the insert slideway is smaller than that of the female die, and one side wall of the movable insert, which extends along the direction perpendicular to the die assembly direction, is stopped on a step surface formed between the two ends of the.
7. The insert thickness tolerance compensation mechanism of an insert injection mold according to claim 6, wherein: the die is characterized by further comprising a limiting connecting piece (11), a countersunk through hole with the diameter smaller than that of the other end towards one end of the female die is formed in one side wall of the movable insert extending in the direction perpendicular to the die assembling direction, the connecting piece can be inserted into the countersunk through hole in a sliding mode, one end of the connecting piece is fixedly connected with the male die, the other end of the connecting piece forms a radially outward expanding structure, and the radially outward expanding structure is accommodated in a countersunk head of the countersunk through hole and is stopped on the countersunk bottom surface of the countersunk through hole.
8. The insert thickness tolerance compensation mechanism of an insert injection mold according to claim 1 or 6, characterized in that: a restoring spring (12) is also provided, which provides the movable insert with a spring retaining force in the direction away from the female die.
9. The insert thickness tolerance compensation mechanism of an insert injection mold according to claim 2, wherein: the movable insert, the first sliding block and the second sliding block are respectively provided with an ejector pin hole (13) which is opposite to the communicating position, an ejector pin on the male die can be inserted into the ejector pin hole in a sliding mode and can tightly abut against the surface of the insert, and a set gap exists between the ejector pin hole on the first sliding block and the side wall of the ejector pin.
10. The insert thickness tolerance compensation mechanism of an insert injection mold according to claim 3, wherein: and a guide block (14) is fixedly arranged on the inner side wall of the slide block mounting groove, and the outer side wall of the second slide block is tightly attached to the guide surface of the guide block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010564763.4A CN111761779A (en) | 2020-06-19 | 2020-06-19 | Insert thickness tolerance compensation mechanism of insert injection mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010564763.4A CN111761779A (en) | 2020-06-19 | 2020-06-19 | Insert thickness tolerance compensation mechanism of insert injection mold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111761779A true CN111761779A (en) | 2020-10-13 |
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ID=72721191
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010564763.4A Pending CN111761779A (en) | 2020-06-19 | 2020-06-19 | Insert thickness tolerance compensation mechanism of insert injection mold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111761779A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114872277A (en) * | 2022-03-30 | 2022-08-09 | 郯城县泓邦塑柄有限公司 | Injection mold for outer layer of blank piece and preparation method thereof |
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| CN210139571U (en) * | 2019-04-16 | 2020-03-13 | 江苏博俊工业科技股份有限公司 | Stamping part insert injection mold |
| CN212472197U (en) * | 2020-06-19 | 2021-02-05 | 江苏博俊工业科技股份有限公司 | Insert thickness tolerance compensation mechanism of insert injection mold |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10302248B3 (en) * | 2003-01-22 | 2004-06-24 | Merit Precision Tools Limited | Mold, for injection molding of thermosetting plastics components with cut-back sections, has a structured mold insert with a longitudinal sliding movement using parallel guides at the under side |
| CN101979234A (en) * | 2010-10-15 | 2011-02-23 | 昆山乙盛机械工业有限公司 | Oil cylinder type die internal cutting die |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114872277A (en) * | 2022-03-30 | 2022-08-09 | 郯城县泓邦塑柄有限公司 | Injection mold for outer layer of blank piece and preparation method thereof |
| CN114872277B (en) * | 2022-03-30 | 2023-11-14 | 郯城县泓邦塑柄有限公司 | Injection mold for outer layer of blank and preparation method thereof |
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